One of the floor mosaics of the splendid Galleria Vittorio Emanuele II connecting the Piazza del Duomo and the Piazza della Scala in Milan is the emblem of Turin, the bull. According to a Milan tradition spinning on the bull brings good luck. However some say that one needs to made a wish while spinning and that will definitely come true. One way or another this tradition is daily followed by hundreds of visitors of the gallery, mostly tourists. As a result the image of the bull requires a restoration every year.